However, this should not be confused with the secrets of Neptune or the 12th house as that is where the dissolution of the Ego takes place. The 12th house is not a powerhouse like the 8th, it is traditionally known as the house of your self-undoing where your secrets can potentially defame you, which is very different from the 8th house where your personal power hides. The 12th house is the intermediate state between life and death, and as such it has no interest in exerting power or control over this world. Neptune is about letting go. Pluto is about control.
